Industry leaders & academic leaders gathered in Shanghai, the first Electrospinning Nonwovens Conference ended perfectly

From April 7th to 8th, the "First China Electrospinning Nonwoven Materials Conference " was held in Shanghai with the theme of "Strong Foundation, Innovation, and Integration". The conference is guided by the China National Textile and Apparel Council, hosted by the China Industrial Textiles Industry Association, and organized by Donghua University.

More than 500 experts, scholars, and representatives from enterprises and institutions in the field of electrospinning nonwoven materials attended the conference.

High-end viewpoint

Strengthen the foundation and set the tone for the development of the industry

How should the development of electrospun nonwoven materials go? The first China Electrospinning Nonwovens Summit focused on cutting-edge technologies in the industry and set the course for development.

Li Lingshen said in his speech that the establishment of the Electrospinning Special Committee and the convening of the first Electrospinning Summit are timely and of great significance. It will explore and promote the long-term development path of electrospinning nonwoven materials and strengthen international cooperation To improve the status and influence of China's electrospun nonwoven materials on the world stage. Regarding the future development of the Electrospinning Special Committee , Li Lingshen put forward the following suggestions: First, consolidate innovation capabilities and promote breakthroughs in key technologies. The second is to strengthen the platform effect and improve the level of academic exchanges. The third is to unblock the transformation of achievements and realize high-end industrial applications. The fourth is to adhere to the leadership of talents and build the support of talents in the industry.

Yu Jianyong said that under the grand strategy of building a new industrial development pattern, the electrospinning nonwovens industry must insist on innovation as the first driving force, continuously strengthen interdisciplinary integration, strengthen basic research, accelerate the industrialization of scientific and technological achievements, and support the nonwovens industry Develop in the direction of green, intelligent, and new materials, and shape new advantages in the industry. In terms of promoting the development of electrospinning nonwoven technology through innovation, Yu Jianyong put forward three suggestions: First, focus on demand and make breakthroughs in core key technologies. The second is to promote the construction of a multidisciplinary cross-integration system. The third is to create a mechanism for the transformation of market-oriented achievements.

Li Guimei pointed out that this summit aims to make technical exchanges more effective, make technology docking produce benefits, transform scientific and technological achievements into productivity, and inject new vitality and impetus into the development of electrospinning nonwoven materials industry. In the future, it is expected that the Electrospinning Special Committee will further implement the key tasks of the "14th Five-Year Plan" of the industry, strengthen the leadership of scientific and technological innovation, actively promote the integration and development of basic research and industrialization of electrospinning nonwoven materials, and promote two-way exchanges between academics and industries. Make new contributions to the healthy and rapid development of my country's electrospinning nonwovens industry.

Li Wei said that electrospun non-manufacturing materials, as a new growth point in the field of industrial textiles, have shown extremely broad application prospects. Under this background, building a platform for academic research, scientific and technological innovation and industrialization exchange of electrospun non-manufacturing materials and its upstream and downstream industrial chains is of great significance to the innovation and development of the fiber field. The convening of this conference will further promote the combination of industry, education and research, collaborative innovation, further promote the cultivation of talents in related fields, accelerate the pace of achievement transformation, make the achievements of industry, education and research take root, and provide strong support for the innovative development of electrospinning.

Technology exploration

In-depth innovation, focusing on changes in industrial demand

What kind of iteration has been achieved in the technology and application of electrospun nonwoven materials? Many experts and scholars at the first China Electrospinning Nonwoven Materials Summit put forward constructive opinions and thinking, and displayed innovative research results in multiple dimensions.

Hou Haoqing made a keynote report on "Electrospinning Technology - Laboratory Products and Industrialization, Market Challenges and Opportunities". The diameter and mechanical properties of electrospun fibers , new uses of electrospun fibers , and the application and industrialization of electrospun fibers in protective clothing, thermal clothing and other fields were introduced in detail . Through the analysis of various experimental data and processing parameters, the future research hotspots and application directions of electrospun fibers are summarized , and their own opinions are put forward for the opportunities and challenges faced by the electrospinning industrialization. At the same time, it is pointed out that the application fields of electrospun fibers mainly include battery separators, air purification, sewage treatment, light sail materials , military clothing protective layers, wound dressings, catalyst carriers, as substrate materials to prepare multi-level nanostructures, and as precursors to prepare carbon nanofibers , textile composite fabrics, etc. The composite technology of electrospun microfiber porous membrane and traditional woven fabric is the key to the development of electrospun comfortable clothing.

Cao Hongbin, a researcher at the Institute of Process Engineering, Chinese Academy of Engineering, made a keynote report on "Construction and Application of Nanofiber Membranes for Water Desalination". The application of nanofiber membranes in membrane distillation desalination and capacitive desalination and the solution for large-scale preparation of nanofiber membranes were introduced in detail, and non-rotating electrode spinning is a fast and scalable new method for the preparation of high-porosity hollow fiber membranes ; The nanofiber membrane phase has high roughness and has a re-sag structure, which is easy to modify the surface/three-dimensional super-wetting interface, which can solve the problems of scaling/wetting and maintain high flux; electrospinning polycrystalline carbon nanocomposite Fibers can optimize conductivity and pore structure at the same time, and directly prepare membrane electrodes with high capacitance and desalination performance; increasing the degree of cross-linking between fibers through dilute solvent treatment can increase strength and retain high porosity. For future development, Cao Hongbin said that the application of desalination engineering still needs to pay attention to the stability and production efficiency of the membrane; develop green solvent /water-based solvent/solvent-free green spinning technology, increase the proportion of bio-based/degradable materials, and reduce environmental impact .

Peng Huisheng, a professor of the Department of Polymer Science at Fudan University, made a keynote report on "Exploration and Thinking of Polymer Fiber Devices". He said that making polymer fibers into fabrics is an important symbol of human civilization, and electronic devices are the driving force for the development of modern information society, which is developing in the direction of miniaturization, flexibility and integration. The characteristics of fiber electronic devices mainly include: softness, elasticity, miniaturization, and high integration; they can be woven into breathable and moisture-conducting fabrics through textile methods. Fiber electronic devices have almost all electronic functions such as power generation, energy storage, color change, light emission, treatment, calculation, and communication. It has shown great application prospects in a wide range of fields such as wearable devices, new energy, information technology, Internet of Things, artificial intelligence, general health, and space detection.

Yu Yan, a professor at the University of Science and Technology of China, made a keynote report on "Electrospinning Meets Secondary Batteries - From "Lithium" to "Sodium". The application of electrospinning in lithium-ion batteries, greenhouse sodium-sulfur batteries, and solid-state batteries is highlighted. She said that lithium-ion batteries play an important role in clean energy applications, electric vehicles and other fields, but the security of the lithium resource supply chain is under threat, so the development of long-life and low-cost room temperature sodium-sulfur batteries is imperative. High specific energy electrode materials are the key to realizing high energy density batteries. Nanofiber composite electrodes constructed by electrospinning can improve electrical conductivity, alleviate electrode volume changes, promote efficient migration and transmission of electrons and ions, shorten ion transmission distances, and improve reaction kinetics study. In the future, electrospinning can make the performance of batteries higher, faster and stronger.

Yang Weimin, a professor at Beijing University of Chemical Technology, made a report on the "Innovation Research Progress of Yinglan "Rainbow Silk" Nanofiber Green Manufacturing Technology". The innovation research progress and application of nanofiber electrospinning technology and differential electrospinning technology for polymer melts were introduced in particular . The corresponding solution, and introduces the innovative breakthrough of polymer melt differential electrospinning air twisting into yarn.

Zheng Zijian, Chair Professor of Soft Matter and Devices, Department of Applied Biology and Chemical Technology, Hong Kong Polytechnic University, made a keynote report on "Breathable and Stretchable Electronic Skin". His team developed a breathable and stretchable electronic device, and demonstrated its breathability and skin testing . result. He pointed out that the electronic device is made by coating or printing liquid metal onto elastic fabric, and its surface will form a thin layer of solid oxide. Throughout the stretching process, the liquid metal deforms to form porous, wrinkled The grid structure endows the device with high air permeability, ultra-high stretchability and electrical conductivity.

Zhang Yingying, a professor of chemistry at Tsinghua University, made a keynote report on "Application and Exploration of Silk Fiber Materials in the Field of Flexible Smart Wearables". Introduced silk functional composite materials, including electrospinning in-situ coating to prepare conductive fibers with core- sheath structure , coaxial 3D printing to make nano-carbon- silk core-spun conductive fibers, transparent, superelastic, ion-conductive silk composite fibers, sericin Protein-nano-carbon materials printed electronic ink, sericin-graphene-based washable electronic fabrics, etc., and described how to develop sweat-driven smart cooling clothing, material identification-display integrated flexible intelligent systems, and temperature- Devices and products such as pressure dual -function sensing electronic skin and all-fabric based sweat analysis patch.

Zhao Yong, a professor at Beihang University, made a keynote report on "Multiscale Hollow Structure Nanofiber Energy Catalytic Materials". Introduced the idea of designing multi-scale hollow nanofiber materials, the method of preparing multi-level hollow nanofibers by coaxial electrospinning , and the application of multi-scale hollow nanofiber materials in supporting catalysts, anode materials, lithium-sulfur cathodes , and sodium storage materials . application exploration.

Multiple empowerments

Promote the transformation of achievements and broaden product application fields

The conference focused on five themes of electrospinning new materials, new technologies, and new devices, electrospinning nonwoven materials and energy, environment, biomedicine, and industrial exchanges. It was divided into five sub-venues for reports and exchanges, and shared new theories of electrospinning , new methods, and new dynamics have promoted the transformation of scientific and technological achievements.

Set sail with glory

There is a long way to go to gather the industry's hard work

On April 8th, the one-and-a-half-day "First China Electrospinning Nonwovens Conference" came to an end. Wang Xianfeng, deputy dean of the Textile College of Donghua University, presided over the closing ceremony of the Conference.

Ding Bin, the executive chairman of the conference, said in his thanks that this summit focused on the latest basic research and industrial application results in the field of electrospinning in my country, which made us deeply feel the strong pulse of technological innovation and the era of development of the electrospinning industry strength. In recent years, the field of electrospinning in my country has developed rapidly. On the one hand, the number of high-level papers published in this field and the number of citations in my country have ranked among the top in the world; A major breakthrough, the number of enterprises engaged in the manufacture of electrospinning equipment and the production of electrospinning non-woven materials has increased significantly, and the products have been widely used in air filtration, oil-water separation, waterproof and moisture-permeable, cold-proof and warm-keeping and other fields. In the future, research and innovation in the field of electrospinning in my country still has a long way to go. Industry colleagues still need to work together to overcome difficulties, contribute more original and leading achievements, and write a greater chapter of a technologically powerful country together.

(Source: China Industrial Textiles Industry Association)